<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>表格作业</title>
	</head>
	<body>
		<table border="1" width="260px" height="260px" cellspacing="0" cellpadding="50">
			<tr>
				<td colspan="3">a</td>
				 <td colspan="2" rowspan="3">b</td>
			
			</tr>
			<tr>
		<td rowspan="4">c</td>
		        <td colspan="2" rowspan="2">d</td>
				
			
			</tr>
			<tr bgcolor="gray">
			
			
			
			</tr>
			<tr bgcolor="blue">
				
			    
			</tr>
			<tr bgcolor="green">
				<td rowspan="2" colspan="4">e</td>
	
	
		
		
			</tr>
		</table>
	</body>
</html>